protected override void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext invokerContext)
{
Console.WriteLine(exceptionContext.Error);
//exceptionContext.Result = "Change the return value, nulls error";
base.OnIncomingError(exceptionContext, invokerContext);
}
/// <summary>
/// Wraps a function that invokes a server-side hub method. Even if a client has not been authorized to connect
/// to a hub, it will still be authorized to invoke server-side methods on that hub unless it is prevented in
/// <see cref="IHubPipelineModule.BuildIncoming"/> by not executing the invoke parameter.
/// </summary>
/// <param name="invoke">A function that invokes a server-side hub method.</param>
/// <returns>A wrapped function that invokes a server-side hub method.</returns>
public virtual Func<IHubIncomingInvokerContext, Task<object>> BuildIncoming(Func<IHubIncomingInvokerContext, Task<object>> invoke)
{
return async context =>
{
if (OnBeforeIncoming(context))
{
try
{
var result = await invoke(context).OrEmpty().PreserveCulture();
return OnAfterIncoming(result, context);
}
catch (Exception ex)
{
var exContext = new ExceptionContext(ex);
OnIncomingError(exContext, context);
var error = exContext.Error;
if (error == ex)
{
throw;
}
else if (error != null)
{
throw error;
}
else
{
return exContext.Result;
}
}
}
return null;
};
}
protected override void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext context)
{
if (log.IsErrorEnabled)
{
log.ErrorFormat("Exception while invoking {0} on hub {1}: {2}", context.MethodDescriptor.Name, context.MethodDescriptor.Hub.Name, exceptionContext.Error.Message);
}
base.OnIncomingError(exceptionContext, context);
}
protected override void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext invokerContext)
{
ChatLog.Debug("=> Exception " + exceptionContext.Error.Message + " " + exceptionContext.Error.StackTrace);
if (exceptionContext.Error.InnerException != null)
{
ChatLog.Debug("=> Inner Exception " + exceptionContext.Error.InnerException.Message + " " + exceptionContext.Error.InnerException.StackTrace);
}
base.OnIncomingError(exceptionContext, invokerContext);
}
protected override void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext invokerContext)
{
Debug.WriteLine("=> Exception " + exceptionContext.Error.Message);
if (exceptionContext.Error.InnerException != null)
{
Debug.WriteLine("=> Inner Exception " + exceptionContext.Error.InnerException.Message);
}
base.OnIncomingError(exceptionContext, invokerContext);
}
protected override void OnIncomingError(ExceptionContext ex, IHubIncomingInvokerContext context)
{
_slabLogger.Log(HubType.HubServerVerbose, "=> Exception " + ex.Error + " " + ex.Result);
if (ex.Error.InnerException != null)
{
_slabLogger.Log(HubType.HubServerVerbose, "=> Inner Exception " + ex.Error.InnerException.Message);
}
base.OnIncomingError(ex, context);
}
protected override void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext invokerContext) {
_logger.Error()
.Exception(exceptionContext.Error)
.MarkUnhandled("ErrorHandlingPipelineModule")
.Message("Unhandled: {0}", exceptionContext.Error.Message)
.Tag("SignalR")
.Write();
base.OnIncomingError(exceptionContext, invokerContext);
}
protected override void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext invokerContext)
{
try
{
Log.Error(exceptionContext.Error, "Exception invoking {Method} on {Hub} with {Args}", invokerContext.MethodDescriptor.Name, invokerContext.Hub.GetType().Name, invokerContext.Args);
}
// ReSharper disable once UnusedVariable
catch (Exception e)
{
if (Debugger.IsAttached) Debugger.Break();
}
}
protected override void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext invokerContext)
{
string message = string.Format("=> Exception {0}", exceptionContext.Error.Message);
if (exceptionContext.Error.InnerException != null)
{
message += "\n\t=> Inner Exception " + exceptionContext.Error.InnerException.Message;
}
WindowsEventLog.WriteErrorLog(message);
base.OnIncomingError(exceptionContext, invokerContext);
}
protected override void OnIncomingError(ExceptionContext exceptionContext,
IHubIncomingInvokerContext invokerContext)
{
Log.Error("Error accessing hub " + exceptionContext.Error.Message, this);
if (exceptionContext.Error.InnerException != null)
{
Log.Error("=> Inner Exception " + exceptionContext.Error.InnerException.Message, this);
}
base.OnIncomingError(exceptionContext, invokerContext);
}
protected override void OnIncomingError(ExceptionContext exceptionContext,
IHubIncomingInvokerContext invokerContext)
{
Trace.Fail("HUB EXCEPTION: " + exceptionContext.Error.Message);
dynamic caller = invokerContext.Hub.Clients.Caller;
caller.ExceptionHandler(exceptionContext.Error.Message);
}
protected override void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext invokerContext)
{
Logger.Error(exceptionContext.Error);
base.OnIncomingError(exceptionContext, invokerContext);
}
protected override void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext invokerContext)
{
exceptionContext.Result = 42;
}
//参考：http://www.asp.net/signalr/overview/guide-to-the-api/hubs-api-guide-server#singleusergroups
protected override void OnIncomingError(ExceptionContext ex, IHubIncomingInvokerContext invokerContext)
{
string connectionId = invokerContext.Hub.Context.ConnectionId;
invokerContext.Hub.Clients.Caller.ShowError(string.Format("ConnectionId:{0},ErrorMessage:{1}", connectionId, ex.Error.Message));
}
protected override void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext context)
{
_logger.LogError("{0}: Failure while invoking '{1}'.", context.Hub.Context.Request.User.GetUserId(), context.MethodDescriptor.Name);
_logger.Log(exceptionContext.Error);
}
protected override void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext invokerContext)
{
exceptionContext.Error = new HubException("Wrapped", new { Error = "Data" });
}
/// <summary>
/// This is called when an uncaught exception is thrown by a server-side hub method or the incoming component of a
/// module added later to the <see cref="IHubPipeline"/>. Observing the exception using this method will not prevent
/// it from bubbling up to other modules.
/// </summary>
/// <param name="exceptionContext">
/// Represents the exception that was thrown during the server-side invocation.
/// It is possible to change the error or set a result using this context.
/// </param>
/// <param name="invokerContext">A description of the server-side hub method invocation.</param>
protected virtual void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext invokerContext)
{
}
protected override void OnIncomingError(Microsoft.AspNet.SignalR.Hubs.ExceptionContext exceptionContext, IHubIncomingInvokerContext invokerContext)
{
Trace.WriteLine("@signalr Err" + exceptionContext.Error.ToString());
base.OnIncomingError(exceptionContext, invokerContext);
}
protected override void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext invokerContext)
{
string connectionId = invokerContext.Hub.Context.ConnectionId;
Exception ex = exceptionContext.Error.InnerException ?? exceptionContext.Error;
invokerContext.Hub.Clients.Caller.ExceptionHandler(ex);
}
protected override void OnIncomingError(ExceptionContext exceptionContext, IHubIncomingInvokerContext invokerContext)
{
Debug.Write(" = > 错误：" + exceptionContext.Error);
base.OnIncomingError(exceptionContext, invokerContext);
}